From: Lukasz Majewski <lukma@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] mlo and u-boot
Date: Thu, 23 Feb 2017 10:41:48 +0100 [thread overview]
Message-ID: <20170223104148.04f2f119@jawa> (raw)
In-Reply-To: <CANMsd00wD2nTqcXVZzd7TAN9E9G1F2-ZOqSXvq52G=r2_Dw+sw@mail.gmail.com>
On Wed, 22 Feb 2017 23:53:32 +0530
Ryan <ryanphilips19@googlemail.com> wrote:
> Hello,
>
> I am using AM43XX based board. The bootloader is divided into spl
> u-boot (MLO) and u-boot.bin
>
> I wanted to check what variables are shared between them. How does MLO
> a seperate binary
> share the boot mode and mmcdev to u-boot so that it can use the
> appropriate mmcdev to find the
> kernel.
In u-boot, there is the concept of "environment variables", which are
stored in a separate non-persistent memory (like eMMC, NAND,) or file
system.
For example BBB uses eMMC to store envs.
It is possible to read envs in MLO and u-boot.
>
> thanks,
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
Best regards,
Lukasz Majewski
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next prev parent reply other threads:[~2017-02-23 9:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-22 18:23 [U-Boot] mlo and u-boot Ryan
2017-02-23 9:41 ` Lukasz Majewski [this message]
2017-02-23 19:04 ` Andrew F. Davis
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